plan

A workflow for turning a development topic into an actionable work plan. It explores the project, breaks the work into tasks, and supports quick plans or plans based on a GitHub issue.

In plain words
What is it for?
Use it to create a short or detailed task breakdown, inspect an existing plan, archive a completed plan, or build a plan from a GitHub issue.
Why use it?
It helps make an unclear development request concrete before implementation begins.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/zate/cc-plugins/plan
Any agent
npx skills add Zate/cc-plugins --skill plan
Clone the repo
git clone --depth 1 https://github.com/Zate/cc-plugins

Made for: Claude Code, Codex.

Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,233 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00014 $0.01233
Opus 5 $0.00007 $0.00616
Sonnet 5 $0.00003 $0.00247
Haiku 4.5 $0.00001 $0.00123

Measured yesterday against content hash 7b9a249c8218, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

plan scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/devloop/skills/plan/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Devloop Plan

Create actionable plan from topic. Do the work directly.

Bash hygiene: prefer quiet flags to minimize output (npm install --silent, git status -sb, pipe long output through | tail -n 20).

Step 1: Parse Input

Extract topic from $ARGUMENTS. If missing, show usage: /devloop:plan <topic> [--deep|--quick|--from-issue N]. If --from-issue N: Fetch with gh issue view $N --json number,title,body,url. Use title as topic, body as context.

Step 2: Check Existing Plan (Silent)

If .devloop/plan.md exists:

  1. Count tasks (no file read needed):
    done=$(grep -cE "^\s*- \[x\]" .devloop/plan.md 2>/dev/null || echo 0)
    total=$(grep -cE "^\s*- \[[ x~!-]\]" .devloop/plan.md 2>/dev/null || echo 0)
    
  2. If done == total and total > 0: auto-archive silently:
    "${CLAUDE_PLUGIN_ROOT}/scripts/archive-plan.sh" .devloop/plan.md --force
    
  3. If incomplete (done < total): prompt to archive (force) or cancel.
  4. If no plan file or total == 0: continue to Step 3.

Step 3: Route by Mode

If --quick: Fast Path

Use for bug fixes with known cause or small additions.

  1. Create todo list (2-4 tasks).
  2. If too complex, suggest removing --quick.
  3. Implement directly: Read (3-5 files), Write/Edit, test, summarize.
  4. STOP after completion.

If --deep: Comprehensive Exploration

Use for unclear requirements or architectural changes.

  1. Define Scope: Detect spike type (Tech decision, New feature, Risk, etc.).
  2. AskUserQuestion: User selects aspects (Feasibility, Scope, Risk, Dependencies, Approach, Effort, Impact).
  3. Research: Explore 8-10 files.
  4. Evaluate: Provide verdict per aspect (Confidence, Blockers, Size, Hours/Days).
  5. Write Report: Save to .devloop/spikes/{topic}.md.
  6. Display Summary: Show direct answer, recommendation, and findings.
  7. Proceed to Step 4.

Default Mode: Autonomous Planning (Steps 4-7)

Step 4: Context Detection (Silent)

Run ${CLAUDE_PLUGIN_ROOT}/scripts/check-devloop-state.sh. Detect tech stack and patterns from CLAUDE.md.

Read the full file on GitHub · 104 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 104 lines · 14 tokens per session scan A 7b9a249c8218

Subscribe to this mod's changes

plan is a skill published in the GitHub repository Zate/cc-plugins (10 stars, last pushed 1mo ago), licensed MIT. It adds 14 tokens to every session and 1,233 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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